Struct WriterStalenessGuard

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pub struct WriterStalenessGuard { /* private fields */ }

Expand description

A StalenessGuard backed by the writer’s own queue. The implementation locks the queue, checks the per-key generation and the clear generation, and returns whether the op is still the latest. Cheap when uncontended.

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impl WriterStalenessGuard

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pub fn new(writer: Arc<PersistentResultCacheWriter>) -> Self

Trait Implementations§

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impl StalenessGuard for WriterStalenessGuard

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fn is_current( &self, key: u64, key_generation: u64, clear_generation: u64, ) -> bool

Return true when (key, key_generation) is still the latest known generation for key AND clear_generation matches the current global clear generation.

Auto Trait Implementations§

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impl UnwindSafe for WriterStalenessGuard

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

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impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut T

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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